<!DOCTYPE html >
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <meta name="description" content="">
    <meta name="author" content="">
    <title>Signin Template for Bootstrap</title>
    <!-- Bootstrap core CSS -->
    <link th:href="@{/css/bootstrap.min.css}" rel="stylesheet">
    <!-- Custom styles for this template -->
    <link th:href="@{/css/signin.css}" rel="stylesheet">
</head>

<body class="text-center">
<form class="form-signin"  th:action="@{user/login}" method="post">
    <img class="mb-4" th:src="@{/img/bootstrap-solid.svg}" alt="" width="72" height="72">
    <h1 class="h3 mb-3 font-weight-normal" th:text="#{login.tip}">Please sign in</h1>
<!--如过msg的值为Null，就不显示了-->
   <p style="color: red" th:text="${msg}" th:if="${not #strings.isEmpty('msg')}"></p>

    <input type="text"  name="username" class="form-control" th:placeholder="#{login.username}" required="" autofocus="">
    <input type="password"  name="password" class="form-control" th:placeholder="#{login.password}" required="">
    <div class="checkbox mb-3">
        <label>
            <input type="checkbox" value="remember-me" > [[#{login.remember}]]
        </label>
    </div>
    <button class="btn btn-lg btn-primary btn-block" type="submit" >[[#{login.btn}]]</button>
    <p class="mt-5 mb-3 text-muted">© 2017-2018</p>
    <a class="btn btn-sm" th:href="@{/index.html(l='zh_CN')}">中文</a>
    <a class="btn btn-sm" th:href="@{/index.html(l='en_US')}">English</a>
</form>

</body>

</html>